Skip to main content

Table 2 Cross-correlation and Root-Mean-Square error for walking without AFO and with AFO with a stiffness of 2.6 Nm/degree

From: The interaction between muscle pathophysiology, body mass, walking speed and ankle foot orthosis stiffness on walking energy cost: a predictive simulation study

 

Walking without AFO

Walking with AFO of 2.6 Nm/degree

R

RMSE in SD

% GC different (SPM)

R

RMSE in SD

% GC significant SPM

Ankle angle

0.64*

1.98

18–52% GC

0.83

1.26

–

Knee angle

0.96

1.54

–

0.98

1.11

72–75% GC

Hip angle

0.98

1.23

28–34% GC

0.98

0.73

–

Ankle moment

0.95

0.80

1–3%, 98–100% GC

0.99

1.78

1–3% GC

Knee moment

0.84

1.31

6–9% GC

0.54*

0.87

–

Hip moment

0.92

1.34

17–25% GC

0.96

1.60

–

Ankle power

0.84

1.49

1–8% GC

0.90

1.03

1–3% GC

Knee power

0.65*

3.22*

3–9% GC

0.70

1.24

26–29% GC

Hip power

0.73

3.52*

3–6%, 42–54%, 71–80% GC

0.89

1.93

12–18%, 48–50%, 85–89% GC

  1. AFO ankle foot orthosis, R cross-correlation coefficient, RMSE root-mean-square error, SD standard deviations, GC Gait cycle, SPM statistical parameter mapping
  2. *is considered a moderate cross-correlation (R = 0.5–0.7) or high RMSE (> 2.0 SD)
Back to article page

Journal of NeuroEngineering and Rehabilitation

ISSN: 1743-0003

Contact us